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pa.c (emit_move_sequence): Properly set the mode of the scratch register when...

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* pa.c (emit_move_sequence): Properly set the mode of the scratch
        register when performing secondary reloads for the SAR register.

From-SVN: r29446
This commit is contained in:
Jeffrey A Law 1999-09-16 00:38:00 +00:00 committed by Jeff Law
parent 5019d7a7f0
commit dd8c13e387
2 changed files with 27 additions and 7 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
Wed Sep 15 18:35:38 1999 Jeffrey A Law (law@cygnus.com)
* pa.c (emit_move_sequence): Properly set the mode of the scratch
register when performing secondary reloads for the SAR register.
Wed Sep 15 15:51:52 1999 Mark Mitchell <mark@codesourcery.com>
* rtl.h (NOTE_BLOCK_NUMBER): Replace with ...

29
gcc/config/pa/pa.c
View File

@ -1288,16 +1288,15 @@ emit_move_sequence (operands, mode, scratch_reg)
&& FP_REG_CLASS_P (REGNO_REG_CLASS (REGNO (operand1)))))
&& scratch_reg)
{
/* SCRATCH_REG will hold an address and maybe the actual data. We want
it in WORD_MODE regardless of what mode it was originally given
to us. */
scratch_reg = gen_rtx_REG (word_mode, REGNO (scratch_reg));
/* D might not fit in 14 bits either; for such cases load D into
scratch reg. */
if (GET_CODE (operand1) == MEM
&& !memory_address_p (Pmode, XEXP (operand1, 0)))
{
/* We are reloading the address into the scratch register, so we
want to make sure the scratch register is a full register. */
scratch_reg = gen_rtx_REG (word_mode, REGNO (scratch_reg));
emit_move_insn (scratch_reg, XEXP (XEXP (operand1, 0), 1));
emit_move_insn (scratch_reg, gen_rtx_fmt_ee (GET_CODE (XEXP (operand1,
0)),
@ -1305,11 +1304,27 @@ emit_move_sequence (operands, mode, scratch_reg)
XEXP (XEXP (operand1, 0),
0),
scratch_reg));
emit_move_insn (scratch_reg, gen_rtx_MEM (GET_MODE (operand1),
/* Now we are going to load the scratch register from memory,
we want to load it in the same width as the original MEM,
which must be the same as the width of the ultimate destination,
OPERAND0. */
scratch_reg = gen_rtx_REG (GET_MODE (operand0), REGNO (scratch_reg));
emit_move_insn (scratch_reg, gen_rtx_MEM (GET_MODE (operand0),
scratch_reg));
}
else
emit_move_insn (scratch_reg, operand1);
{
/* We want to load the scratch register using the same mode as
the ultimate destination. */
scratch_reg = gen_rtx_REG (GET_MODE (operand0), REGNO (scratch_reg));
emit_move_insn (scratch_reg, operand1);
}
/* And emit the insn to set the ultimate destination. We know that
the scratch register has the same mode as the destination at this
point. */
emit_move_insn (operand0, scratch_reg);
return 1;
}